140424221523 has 8 divisors (see below), whose sum is σ = 187234069968. Its totient is φ = 93615260384.

The previous prime is 140424221503. The next prime is 140424221537. The reversal of 140424221523 is 325122424041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140424221523 - 2¹⁰ = 140424220499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140424221503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383161 + ... + 653957.

It is an arithmetic number, because the mean of its divisors is an integer number (23404258746).

Almost surely, 2^140424221523 is an apocalyptic number.

140424221523 is a deficient number, since it is larger than the sum of its proper divisors (46809848445).

140424221523 is a wasteful number, since it uses less digits than its factorization.

140424221523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443653.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 140424221523 its reverse (325122424041), we get a palindrome (465546645564).

The spelling of 140424221523 in words is "one hundred forty billion, four hundred twenty-four million, two hundred twenty-one thousand, five hundred twenty-three".